Easy Mobile Payments

WITH MOBILE PAYMENTS HOW TO NOT ANNOY PEOPLE

July 2012

TIM MESSERSCHMIDT Developer Evangelist @SeraAndroid

1.  How payments do look like 2.  How to ease that..

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Content

Slides: http://bit.ly/LMWcgI

Payment scenario

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Sender Receiver

Transaction

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•  Get payment details from the user •  Shipping address •  Receiver •  Payment amount (costs) •  Payment method

•  Do a few calculations •  Shipping costs •  Taxes for different countries •  Currency conversion

•  Provide some feedback •  Error messages •  Success messages

•  Payment processing •  Send details to Gateway •  Wait for response •  Handle response •  Fulfillment

•  Payment verification •  Fraud protection •  Secure connections

•  Responsive design •  Max 2-3 seconds •  Update the inventory

Payment scenario

Don’t let the user jump off..

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1.  Usability 2.  Feedback 3.  Quick response

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Don’t be shocked We’ve got solutions

Mobile Payments Library •  Supports both Android and iOS •  Based on our Adaptive Payments API •  Supported payment types: – Simple – Parallel – Chained – Pre-approved

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Code

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1. Initialize the library

Code

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2. Create a Payment

3. Let the library handle it..

Examples •  MoneyBeam

–  Uses NFC to request transactions –  https://github.com/SeraphimSerapis/GADC-MoneyBeam

•  YardSale –  Uses ZXing to scan QR codes –  https://github.com/zaffra/YardSale

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Mobile Express Checkout •  Magic happens in a WebView – Payment flows uses redirects to enable

payment at PayPal’s site •  Uses your backend with Express Checkout – 3 API calls need to be implemented:

•  SetExpressCheckout – Set details •  GetExpressCheckoutDetails – Review the order •  DoExpressCheckoutPayment – Pay

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Advantage •  Reuses existing implementations •  Most of the logic can be shared between

different platforms •  Mobile optimized – Automatic User-Agent check

•  Just a few steps

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PayPal Access •  Utilize PayPal to login •  Uses OAuth 2.0 & OpenID •  Enables to speed up the process – No need to setup yet another account

•  Easy to implement – Just a few simple callbacks

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New technologies

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Useful links •  x.com/mobile – General overview •  paypal.com/dts – Developer Tech Support •  devportal.x.com – Application control •  developer.paypal.com – Sandbox

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Help! Contact?

•  Twitter: – @PayPalEuroDev – @SeraAndroid

•  Mail: – timme@x.com

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